Billy Flynn is a fictional character from the musical "Chicago," which was created by John Kander and Fred Ebb. He is portrayed as a slick and charismatic lawyer who specializes in defending women accused of murder. Flynn is known for his showmanship and ability to manipulate the media, turning his clients into celebrities. In the story, Flynn represents the character Roxie Hart, who is on trial for killing her lover. His tactics often involve using sensationalism to sway public opinion and the jury. The character of Billy Flynn highlights themes of corruption and the pursuit of fame within the justice system.